Eyeglasses



(No Model.)

H. E. KIRSTBIN.

EYEGLASSES.

No. 393,986. Patented Dec. 4, 1888.

UNITED STATES PATENT OFFICE.

HENRY E. KIRSTEIN, OF ROCHESTER, NE YORK.

EYEGLASSES.

SPECIFICATION forming part of Letters Patent. No. 393,986, date].December 4, 1888.

Application filed January 12, 1888. Serial No. 260,560- (No model.)

T 0 all whom it nmy concern:

Be it known that I, HENRY E. KIRSTEIN, a citizen of the United States,residing at Rochester, in the county of Monroe, and State of New York,have invented certain new and useful Improvem nts in Eyeglasses,ot'which the following is a specification.

My invention relates generally to the class of eyeglasses in which thenose-pieces are adjustable, and which lie and move in a planeat an angleto that occupied by the lenses themselves, and it relates specificallyto the means of attachment of the nose-pieces to the offsets or guardsupon which they are mounted.

l'leretot'ore, in eyeglasses ot' the general class referred to,flt'ljllfit'tllfillty has been conferred upon the nose-pieces bymounting each nose-piece upon a pivot, that is to say by forming a guardor elf-set plate which either embodies in its own structure, or isadapted to hold, a pivot, which, passing through the pivot hole of aclip or stud erected on the back of the nose-piece, establishes apivotal connection between the stud and nose-piece. In practice however,it has been found that this, and similar constructions, are attended bycertain disadvantages arising from the continuous but unequal wear towhich the pivots are subjected.

The object of my invention is to form a joint or connection between anose-piece and an otf-set. guard which shall possess the advantages oflightness, convenience, neatness, and adjustability, and be free Fromthe objections above referred to.

In. the drawings, Figure 1 represents in perspective a pair ofeyeglasses embodying a preferred form of my invention. Figs. 2 and 3,are perspective details of a guard and nose piece exhibiting theconstruction shown in Fig. 1, and Fig. i is a detail view of the ottsetplate. Figs. 5 and U are detailed views of a modified form ofmyinvention: Fig. 7 illustrates another embodiment of my invention, andFig. 8 represents still. another modified form of attachment embodyingmy invention.

Similar letters of reference indicate corresponding parts.

In the drawings, A A indicate the lenses and frames of a pair ofeyeglasses; B, the bow-spring; and the clamp posts.

D is the guard or oft-set plate, well made when of the Jtor1nrepresented in Figs. 1, 2, 3, l, and 6,the major leg (I of which isattached to the clamp post The other or smaller leg (1 of the olt-setplate is n'et'embly as to its entire breadth, slightly bellied outwardlyso as to ait'ord a rocking bearing for the nose piece. An orifice d iscut through the substance of the leg (1. A lug orclip E is formed on theback of the nose piece G which is to be attached to the off-set plate. Iprefer to form the clip by cutting it out at one operation with, and asa part of, the metal member of the nose piece G, and then turning it upat right angles thereto.

The metal memberot' the nose piece is preterably curved in the mannershown in the drawings. The nose piece is applied to the ofif-set plateby passing the clip E tin-(nigh the orifice 1]" in said oft-set plate,and retained in place therein by a stay pin e which passes transverselythrough its tip. The orifice (I is sut'ficiently larger than the clip Eto permit of the necessary play of the latter in the movement of thenose-piece.

It will be seen that pressure exerted against the nose piece causes itto bear directly against the off-set plate, instead of against a pivotas in constructions heretofore in use; that by the swivel joint, formedas above, the nose piece is free to be adjusted to various positions;that moreover, the swivel joint acts as a stop to prevent the nose piecefrom swinging or rocking too far; and, finally, that the wear upon theclip E will not injuriously atfect its operativei'less.

In Figs. 5 and (3 a modified embodiment of my invention is shown, inwhich, the clip, instead of being provided with a retaining pin, isitself bifurcated, the two points thus formed, after pz'lssing throughthe orifice (7 being bent in opposite directions to serve the samepurpose as a retaining pin.

In Fig. 7 the swivel joint is formed by constructing the clip upon theoff-set plate itself, (the said plate being of the modified outlineshown in said Fig. 7), the end of the off-set plate being enteredbetween the metal and celluloid members of the nose piece G,in whichposition the said clip passes through an orifice g in a bellied outportion g of the metal member of the nose-piece, and is retained inplace by a stay-pin.

In Fig. 8 is illustrated a construction embodying my invention in whichthe free end of the off-set plate itself acts as a clip, being passedbodily through an orifice in a bellied out portion g of the metal memberof the nose piece, its extremity is bifurcated, and the two points bentin opposite directions to retain the parts together. The bellied outportion g altords room not only for the existence, but also for therequisite play of the oppositely bent tips of the off-set plate betweenthe metal member and the celluloid member of the nose piece.

Having thus described my invention, I claim:-

1. In eyeglasses, in combination, an offset plate and a nose piece, thelatter mounted upon and supported by the former, a clip formed as a partof or attached to one of said members and extending through an orificeformed in the body of the other, and a retaining device at the outer endof said clip extending transversely to the plane of oscilla- 1 tion ofthe nose piece, which said retaining device does not pass through bothsaid offset plate and clip, substantially as set forth.

2. In eyeglasses, in combination, an off-set plate, a nose piece theback face of which bears directly against the face of said off-setplate, a clip attached to said nose piece passing through an orifice inthe off-set plate and at its outer end provided with a stay-pin,substantially as set forth.

3. In eyeglasses, in combination, a curve faced or bellied off-setplate, a nose piece the back face of which bears directly against theHENRY E. KIRSTEIN.

In presence of J. BONSALL TAYLOR, F. NORMAN DIXON.

